frecent.php (link to last episodes in thread) is partially working as redirect to episode list for thread (has troubles with special symbols)
Authors and threads are sorted by name, episodes by episode number, ascending.
Site search is very simple (search all words on the page), but it works.

And remember, if link to the next episode isn't bold doesn't mean that there is no episode on other end. :) Check list of episodes in the thread or just click all the links.